URL Encoder & Decoder Online

Q: What’s the difference between encodeURI and encodeURIComponent?

encodeURIComponent is for individual components (like query values or path segments) and escapes more characters. encodeURI is for full URLs and leaves reserved characters like : / ? & = intact.

Q: Can I paste a full URL and still use Encode?

Yes, but if you intend to encode only a parameter value, encode the value, not the whole URL, to avoid over-encoding reserved characters.

Q: Why does plus (+) decode to space?

In application/x-www-form-urlencoded form data, + represents a space. This tool converts + to spaces before decoding to be helpful.

Q: Where can I format JSON or Base64 encode text?

Use the JSON Formatter or Base64 tools on Tools Pack. See the Related tools section for quick links.

Input

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Output

How to use

Paste a full URL, a query value, or any text into Input.
Click Encode to percent-encode (safe for query values & path segments), or Decode to reverse it.
Use Copy Output to copy the result.
Shortcuts: Ctrl/⌘+Enter = Encode, Shift+Enter = Decode.

Tips

For full URLs, use encodeURI-style behavior (this tool’s Encode uses encodeURIComponent for components; see FAQ).
On Decode, + is treated as space for legacy application/x-www-form-urlencoded data.
If you see a “Decode error”, your text may contain an invalid percent sequence (e.g. a dangling %).
Unicode and emoji are fully supported.

FAQ

What’s the difference between encodeURI and encodeURIComponent?

encodeURIComponent is for individual components (like query values or path segments) and escapes more characters. encodeURI is for full URLs and leaves reserved characters like : / ? & = intact.

Can I paste a full URL and still use Encode?

Yes, but if you only need to encode a parameter value, encode just the value, not the whole URL—otherwise reserved URL characters may be over-encoded.

Why does plus (+) decode to space?

In application/x-www-form-urlencoded form data, + represents a space. This tool converts + to spaces before decoding to be helpful.

Where can I format JSON or Base64 encode text?

Use the JSON Formatter or Base64 tools. See Related tools for links.

Related tools

More text & encoding utilities:

JSON Formatter Base64 Encode/Decode Text Utilities SHA-256 Hash

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